Thomas h



; (No Model.) I

T. H. LANCASTER. PLOW.

N0.501,011. PatentedJuly l, 1893.

NITED STATES PATENT OFFICE.

THOMAS H. LANCASTER, OF WEST POINT, GEORGIA.

PLOW.

SPECIFICATION forming part of Letter 3 Patent No. 501,011, dated July 4, 1893.

Application filed March 16, 1892- Serial No. 425,171. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS H. LANCASTER, a citizen of the United States of America, and a resident of West Point, in the county of Troup and State of Georgia, have made certain new and useful ImprovementsinPlows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to plows as hereinbefore stated, particular reference being had in the improvement to that class of plows known as shovel-plows; the object being to render the standards of such devices more easy and simple of adjustment and to increase the stability of the adjusting elements, the details of all of which will be hereinafter fully specified, and are shown in the accompanying drawings, in which Figure 1 is a side elevation of the plow with the various adjusting elements all plainly illustrated. Fig. 2 is a view in cross-section of the beam of the plow, showing a front view of the standard and adjusting elements. Fig. 3 is a View of the device from the opposite end of the beam from that shown invthe previously described figure the view shown being a back view of the standard further showing the construction thereof. Fig. 4 is a view of the device looking at the bottom thereof, still further illustrating its construction. Fig. 5 is a View in perspective of the pawl-plate, which is shown slotted for attachment to the beam.

In the figures like reference marks indicate corresponding parts in all the views.

The beam a and the handles 1) may be of any construction. The standard 0 is formed of two parallel bars of metal bolted together at their lower ends or it may be made as shown, of a single piece bent in the form of a loop. The upper end of each side of said standard is provided with a slot cl and the forward edges of said standard are provided with notches c in the form of ratchet or saw teeth. The bolt fpasses through the beam and through the slots d and thus bolts and pivots the said standard to and on the beam and also allows its movement vertically by means of the said slots therein, said vertical movement being resisted by the engagement of the pawl-plate g with the teeth 6, said pawl-plate being seated as shown on the top side of the beam and bein g slotted to provide for its movement to and from engagement with the said teeth, a bolt g securing it in place thereon, by passing through the said slot and through the beam,

having a nut on its lower end for tightening same.

Secured to the lower side of the beam is a plate It, the lower surface of which is dentated, the teeth 71 facing toward the standard. A bolt j passes downwardly through the beam and through the plate It and is screwthreaded on its lower end, having thereon a suitable nut. A dog is has a fiat upper surface and an upwardly extending projection k thereon and is provided with a slot Z therein, which said slot is placed over the boltj and the nut screwed thereon by means of which the projection is on the dog 70 is forced and held into engagement with one of the teeth 2' on the plate h. A bracem is pivoted between the lugs n on the dog 70 at one end and to the standard a at the other end bya bolt or pin 0, or other suitable device for the-purpose.

To adjust the standard as to length of projection below the beam, the boltfis loosened and the pawl-plate g released from engagement with the teeth e whereupon the said standard may be movedlengthwise of the slots d into the desired position and then se- 8 I cured by engaging the said pawl-plate and the teeth and afterward tightening the bolt f.

Theangle of the standard to the beam is adjusted by loosening the bolt j and moving the dog is along the plate It in the desired diing through the said slots, a plate g slotted I00 and bolted to the upper side of the beam, its turned back end of the dog in engagement back edge entering the interdental spaces on with said plate, substantially as and for the the said standard a brace pivoted to said standpurpose specified.

ard nearitslowerend and extending upwardly In testimony whereof I hereunto aflix my 5 at an angle therefrom, a slotted dog having signature in presence of two witnesses.

an upturned back end and being pivoted to r r the free end of said brace, a plate dentated LANCASIER' on its under side and engaging the under side Vitnesses:

of the beam and a bolt passing through the PHIL LANIER,

IO beam and said plate and dog securing the up- J. C. MCKEMIE. 

